Valve



(No Model.) 3 SheetsSheet l.

O. K. WELOH.

VALVE.

Patented Feb. 1, 1898.

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(No Model.)

0. K. WELGH. VALVE.

No. 598,125. Patented Feb. 1, 1898.

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Qarias if fiic fizvenzar 9' Alia/mega UNITED STATES PATENT EErcE.

CHARLES KINGSTON \VELCH, OF COVENTRY, ENGLAND, ASSIGNOR TO THE PNEUMATICTYRE COMPANY, LIMITED, OF DUBLIN, IRELAND.

VALVE.

$PECIFIG'ATION forming part of Letters Patent no. 598,125, datedFebruary 1, 1898.

Application-filed Augu t 80, 1895. Serial No. 561,033. (Il'o model.)Patented in England May 8, 1895,110. 9,130; in France July 20,1895, No.249,037; in Belgium July 22,1895,N0.116,658; in Denmark July 3,1896, No.621; in Victoria March 3, 1897,1113. 13,989, andin Canada AprilS, 1897,No. 55,568.

To all whom it may concern:

Be it known that 1, CHARLES KINGSTON WELCH, engineer, a subject of theQueen of Great Britain, residing at Coventry, England,

have invented certain new and useful Improvements in Valves, of whichthe following is a specification, reference being had to theaccompanying drawings.

I have obtained patents for this invention IO in the followingcountries: Great Britain, N 0. 9,130, dated May 8, 1895; France, No.249,037, dated July 20, 1895; Belgium, ,No. 116,658, dated July 22,1895; Denmark, No. 621, dated July 3, 1896; Victoria, No. 13,989, datedI 5 March 3, 1897, and Canada, No. 55,568, dated April 8, 1897.

This invention relates to valves chiefly intended for use with pneumatictires for the wheels of road-vehicles.

One object of the said invention is to construct the head of the tubularvalve-body sufficiently narrow to allow the edges of the tirecover withtheir cores or equivalent retain ing devices to pass freely into placebetween 2 5 the saidhead and the sides of narrow rims now in demand,while at the same time the head shall have sufficient grip on the rubberinflatable tube or chamber to insure a good and secure joint therewith.

Another object of this invention is an improved washer to hold or retainthe sides of the rubber inflatable tube in such a manner as to leave afree passage for the edges of the cover when placing the same inposition on 5 the rim previous to inflation, whereby the risk of nippingthe inflatable tube under the cores or edges of the cover is minimized.By this construction the cores are not as liable as heretofore to beaccident-ally left in a position 4o eccentric to the rim. The saidimproved provision of efiicient means for preventing the rotation of.the tubular valve body with respect to the inflatable tube whenattaching or detaching the pump or accessories of the valve in lieu ofor in combination with the fiat usually provided on the said body forthis purpose.

Other objects of the said invention are improvements in detail,hereinafter fully described.

Referring to the accompanying drawings, Figure 1 is a longitudinalcentral section through a valve constructed according to this invention,the same being shown applied to the rim of a velocipede-wheel. Fig. 2 isa transverse section of the rim and showing the valve in side elevation.Fig. 3 is a side elevation of the valve detached from the rim. Figs.

4 and 5 are two views of the tubular valvebody. Figs. .6, 7, and 8 are aside view, plan, and an end view, respectively, of a washer hereinafterdescribed. Figs. 9 and 10 are views of the retaining-nuts detached. Fig.

11 is a central longitudinal section of the valve-stein and valve. Fig.12 is a side view of the valve-stem alone. Fig. 13 is a side view, andFig. 14: is a central longitudinal section, of the valve-stem and valveapplied to the connector. Fig. 15 is a central longitudinal section of aslightly-modified valve. Fig. 16 is a side view of the valve-stem andvalve detached. I Fig. 17 is aside view of the valve-stem alone. Fig. 18is a central longitudinal section of the valve-stem and valve, and Fig.19 is an end view of the same. Fig.

20 is a central longitudinal section of the connector and dust-cap. Fig.21 is a plan of a modified form of Washer and filling-piece hereinafterdescribed and showing the neck of the valve-body in section. Fig. 22 isa plan of the washer alone, and Fig. 23 is a plan of the filling-piece.Fig. 24. is a transverse section through the rim of a carriage-wheelfitted with a pneumatic tire having a valve shown in 1ongitudinalcentral section constructed according to this invention. Fig. 25 is acentral section taken at right angles to that in Fig. 24. Figs. 26 and27 are two views of the tubular valve-body. Fig. 28 is a plan, and Fig.29 is a side view, of a washer to fit said valve. Fig. 30 is a side viewof the valvedoody fitted with 5 a split washer and peculiar nut shown insecrim.

detached. Fig. 35 is a side view, partly in section, of a tubularvalve-body furnished with an internal valve-seat and ball-valve.

Fig. 36 illustrates a modified mode, hereinafl.

ter described, of attaching the valve-body to the inflatabletube bymeans of a teat.

Like letters denote corresponding partsthroughout the drawings.

A is the metal rim of thewheel.

B is the tire-cover.

O is the inflatable tube.

D is the tubular valve-body,whioh is passed through a hole in theinflatable tube. and through another in the rim in the usual man ner,the head D of the valve-body being. re tained inside the inflatabletube.

The valve shown in Figs. land 1 5 is onein which a rubber tube forms thevalve proper. That shown in Figs. 24 and 25 and in Figs. 30, 32, and 33is one in which the closure of the passage is'effected by'compressingthe infiatable tube between the'rim and the head of the valve-body.

The head D is made sufliciently narrow to allow room for the edges 13.of the tireeeover with their cores B? or equivalent retaining sidesofthe rim A and the said head D, when attaching and detaching the cover,and the retainingrwasher E is furnished-with; flanged edges or shouldersE, asshowmto keepxthe inflatable tube at that part thereof near-thevalve away from the bottom and sides of; the I I The depth of thesaidflanged edges on shouldersll is in some instancesbut slight, so as tomerely direct the sides of the tube. away from the bottom and sides ofthe rim, while in other instances it is more consider: able. Forbicycle-rims, such as shown in Fig. 1, the washer E rests on the bottom.of the rim in the well-known manner and. sup; ports the head D when thevalve-body is screwed tight to the rim by its nut G, washer E (shown inFigs. 24 and 2 5) is re-v ceived in a recess a in therim, which allowsthe head D to close the aperturesthrou gh the valve by pinching therubber between it and the rim. In neither case can the washertur-naround'in. the rim. The shouldersv E of the washer operate incombination withthe flat sides of the head D of the valve-bodytopre:vent the rotation of the latter in the holein the inflatable tube 0 andin the rim whenthe pump or parts of the valve are being connected ordisconnected, and they thus prevent injury to the joint between thevalve-body andinflatable tube.

In order to insure that the'washer E- and head D shall havesufficientgrip on the, in.- flatable tube to prevent leakage of airaround 'for t is. pu poseist ated, is made to fit in the rim, so that itdevices to pass in and out freely between the l I The.

the valve-body, the Width of the latter is re duced at that partimmediately under the head by forming recesses therein, as shown at D soas to obtain an increased grip upon the rubber tube around the edge ofthe hole.

When fixing the valve in position, the tubular valve-body. is passedthrough thehole provided to receive it in the rubber tube and a piece offabric is then fastened by rubber solution or otherwise to the tube tosupport and stiffen the rubber at this part. The edges of the rubberandfabric around the hole aforesaid are next pressed into the recesses D,uuder the head and secured by the washer E v and nut F.- The washer issometimes provided with a non-circular hole, as shown in Fig. 22, inwhich is fitted a filling-piece E Fig. 23, having flat sides that enterthe recesses D and engage with the flat sides of the valve-body, asshown in Fig. 21. The said filling-apiece, which is held in place by thenut nsu l an amples p on the. tube an p vents the rotation of thevalvebody in the Washer.

in some instances a divided washer, as

shoulder F to fit in an annular recess in the Washer or is otherwisesuitably construct-ed The washer, as before cannot turn. In someoaseahoweyeuit is received in a non-circular recess. or hole provided inanother washer H, Figs. 32 and 33, that fits. the rim. somewhat like asaddle to straddle the cen- This; washer is shaped tral rib A of therim, thereby insuring that thewasher" shall not turn. inthe rim. It is 9may be used under the nut G, thatsecures the. valve-body to. therim.

I n valves intended for pneumatic tiresfor cabs, carriages, and. likevehicles I preferablymake thevalve-body of two diameters and screw thenuton the smaller part thereof. I form the nut witha tubular extensionG, Figs. 24 and 25 that incloses the. outer end of the larger part ofthe valve-body. The tubular part G" is flanged atv G2 to engage withthehooks K, Fig. 25, that retain the nut in placeion the rim. The largerpart of the valve-body may have flats formed on opposite sides thereof,as shown in Figs. 26 and 27, to engage with the fiat sides of thenoncircular hole in the rim through which the valve-body is passed.

These improvem cuts are applicable to many other well-known valvesbesides those shown in the drawings. When applied to valves of the kindshown in Figs. 24: and 25, the tubular body may be fitted with asuitable nonreturn valve, such as that shown in Fig. 1, for example,with or without the modifications hereinafter described. The saidnonreturn valve may be inclosed in the tubular body I) or it may beattached thereto. One advantage of this combination is that thenon-return valve proper may be removed for examination or repair withoutnecessarily deflating the tire. In some instances the tubular valve-bodyis fitted with a suitable ballvalve L, such as shown in Fig. 35, orother similar valve, in combination with a suitable valve-seat L. Theball is introd need through an opening in the valve body or head, whichopening is then closed.

In cases where the head is reduced very much to fit very narrow rims Isometimes provide in combination with or in lieu of the other means ofattachment above described a conical-shaped enlargement of the rubber-M, Fig. 36, around the neck between the head D and a collar M, formedon thevalvebody and operating to prevent leakage of air around thevalve-body. The conical enlargement, which constitutes in effect awasher, may be molded integrally with the air-tube or may be madeseparately and secured to the rubber tube by rubber solution or other-W186.

The end of the connector M, Figs. 1, 2, and 20, is preferably madeconical to fit the pump connections and the dust-cap N, Fig. 20, whichis made with a recess N at theend, so

as not to bear upon the conical point of the connector. The said cap maybe fitted with a lead, vulcanite, or other seating-ring N to preventleakage. The delivery-tube of the pump may be similarly fitted.

The spindle or stem 0 of the non-return valve, where such is used, maybe secured to the connector M by screwing, as shown in Figs. 1 and 14,any suitable means being provided to prevent leakage past the screwthreads, or it may be otherwise secured. For example, the stem may befurnished with a flange or head 0, Figs. 16, 17, and 18, which entersthe connector and is secured against the end of the tubular valve-bodywhen the connector is screwed thereon. I'Vashers O are provided on bothsides of the head to preis sometimes provided with a head 0 to preventthe blowing off of the rubber valve-tube 0 This head is preferably madewith fiat sides, as shown in 19, to allow a free passage for the air.The air-passage P through the reduced part of the valve-body is made ofreduced size to insure sufficient strength in the body and to preventthe rubber valvetube being blown into the inflatable tube. The tubularvalve-body D, especially when used for cycle-wheels, may be made of muchsmaller diameter than has been usually the case with certain classes ofvalves, so that great lightness is obtained, and it is then notnecessary to make a large hole in the rim, which is an importantconsideration in light and narrow rims.

I claim 1. The combination with a pneumatic tire or inflatable tube, ofa tubular valve-body having a head extended in the direction of thecircumference of the tire and with flat sides, recesses formed in thevalve-body under the head for giving increased grip on the air-tube, anda washer of a shape corresponding to that of the sides of the head andwith upturned side edges that inclose the head and grip the'air-tubebetween the said side edges and the sides of the head of the valvebody,as described.

2. The combination with a pneumatic tire or inflatable air-tube, of atubular valve-body having an elongated head with straight or fiat sides,recesses formed in the valve-body under the head for giving it increasedgrip on the air-tube, awasher having upturned sides to grip the airtubebetween the said sides and the head of the valve-body, said washerhaving a non-circular hole, and a filling-piece fitting within said holeand constructed to engage with the flats formed by the recesses underthe head, substantially as described.

In witness whereof I have hereunto set my hand this 13th day of August,1895.

CHARLES KINGSTON W'ELOH.

\Vitnesses:

ALBERT BROWN, ERNEST Ovnnron.

